package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.constant.RedisConstant;
import com.atguigu.lease.common.exception.LeaseException;
import com.atguigu.lease.common.result.ResultCodeEnum;
import com.atguigu.lease.common.utils.JwtUtil;
import com.atguigu.lease.model.entity.SystemUser;
import com.atguigu.lease.model.enums.BaseStatus;
import com.atguigu.lease.web.admin.mapper.SystemUserMapper;
import com.atguigu.lease.web.admin.service.LoginService;
import com.atguigu.lease.web.admin.vo.login.CaptchaVo;
import com.atguigu.lease.web.admin.vo.login.LoginVo;
import com.atguigu.lease.web.admin.vo.system.user.SystemUserInfoVo;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.wf.captcha.SpecCaptcha;
import com.wf.captcha.base.Captcha;
import org.apache.commons.codec.digest.DigestUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;

import java.util.UUID;
import java.util.concurrent.TimeUnit;

@Service
public class LoginServiceImpl implements LoginService {
    @Autowired
    StringRedisTemplate redisTemplate;
    @Autowired
    SystemUserMapper systemUserMapper;

    @Override
    public CaptchaVo getCaptcha() {
        SpecCaptcha specCaptcha = new SpecCaptcha(130, 48, 4);
        specCaptcha.setCharType(Captcha.TYPE_DEFAULT);
        String code = specCaptcha.text().toLowerCase();
        String key = RedisConstant.ADMIN_LOGIN_PREFIX + UUID.randomUUID();
        String image = specCaptcha.toBase64();
        redisTemplate.opsForValue().set(key, code, RedisConstant.ADMIN_LOGIN_CAPTCHA_TTL_SEC, TimeUnit.MINUTES);
        return new CaptchaVo(image, key);
    }

    @Override
    public String login(LoginVo loginVo) {
        //1.判断是否输入了验证码
        if (!StringUtils.hasText(loginVo.getCaptchaCode())) {
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_CODE_EMPTY);
        }
        //2.校验验证码
        String string = redisTemplate.opsForValue().get(loginVo.getCaptchaKey());
        if (string == null) {
            throw new LeaseException(ResultCodeEnum.ADMIN_CAPTCHA_CODE_NOT_FOUND);
        }
        if (!loginVo.getCaptchaCode().equalsIgnoreCase(string)) {
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_CODE_ERROR);
        }
        //3.校验用户是否存在
        LambdaQueryWrapper<SystemUser> wrapper = new LambdaQueryWrapper<>();
        wrapper.eq(SystemUser::getUsername, loginVo.getUsername());
        SystemUser systemUser = systemUserMapper.selectOne(wrapper);
        if (systemUser == null) {
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_NOT_EXIST_ERROR);
        }
        //4.校验用户是否被禁
        if (systemUser.getStatus().equals(BaseStatus.DISABLE)) {
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_DISABLED_ERROR);
        }
        //5.校验用户密码
        LambdaQueryWrapper<SystemUser> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(SystemUser::getPassword, DigestUtils.md5Hex(loginVo.getPassword()));
        SystemUser systemUser2 = systemUserMapper.selectOne(queryWrapper);
        if (systemUser2 == null) {
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_ERROR);
        }
        //6.创建并返回token
        return JwtUtil.createToken(systemUser2.getId(), systemUser2.getPassword());
    }

    @Override
    public SystemUserInfoVo getSysUserInfoByUserId(Long userId) {
        SystemUser systemUser = systemUserMapper.selectById(userId);
        SystemUserInfoVo systemUserInfoVo=new SystemUserInfoVo();
        systemUserInfoVo.setName(systemUser.getName());
        systemUserInfoVo.setAvatarUrl(systemUser.getAvatarUrl());
        return systemUserInfoVo;
    }
}
